EP 0669739 A2 19950830 - Direct current level acquisition circuit.
Title (en)
Direct current level acquisition circuit.
Title (de)
Schaltung zur Erfassung von Gleichspannungspegeln.
Title (fr)
Circuit d'acquisition du niveau de la tension continue.
Publication
Application
Priority
ES 9400399 A 19940228
Abstract (en)
Of particular application in burst communications systems that require a rapid acquisition of the direct current component level, the bursts comprising a header with a determined sequence. It includes two lowpass filters (FIL1,FIL2) with different bandwidths, which receive an input signal (RX_DAT) and the outputs of which are applied to selection means (SEL) which dynamically selects one of the preceding signals from the lowpass filters (FIL1,FIL2) as the direct current component (DC_O) of the input signal (RX_DAT), the latter being the signal coming from the second lowpass filter (FIL2), with the greater bandwidth, during the burst header and that coming from the first lowpass filter (FIL1) or from the second lowpass filter (FIL2), sampled, for the rest of the burst. This direct current component signal (DC_O) is applied to a comparator (COMP), which also receives the input signal (RX_DAT), in order to obtain the regenerated output data signal (DAT_O). <IMAGE>
IPC 1-7
IPC 8 full level
H04L 25/06 (2006.01)
CPC (source: EP)
H04L 25/062 (2013.01); H04L 25/065 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0669739 A2 19950830; EP 0669739 A3 19951122; AU 1223395 A 19950907
DOCDB simple family (application)
EP 95102609 A 19950224; AU 1223395 A 19950215